-er -ol c-- ccc ccd cce ccl cco ccp ccr ccs cct cdc cdd cde cdl cdo cdp cdr cds cdt ce- cec ced cee cel ceo cep cer ces cet cl- clc cld cle cll clo clp clr cls clt co- coc cod coe col coo cop cor cos cot cpc cpd cpe cpl cpo cpp cpr cps cpt crc crd cre crl cro crp crr crs crt csc csd cse csl cso csp csr css cst ctc ctd cte ctl cto ctp ctr cts ctt dcc dcd dce dcl dco dcp dcr dcs dct ddc ddd dde ddl ddo ddp ddr dds ddt de- dec ded dee del deo dep der des det dl- dlc dld dle dll dlo dlp dlr dls dlt doc dod doe dol doo dop dor dos dot dpc dpd dpe dpl dpo dpp dpr dps dpt drc drd dre drl dro drp drr drs drt dsc dsd dse dsl dso dsp dsr dss dst dtc dtd dte dtl dto dtp dtr dts dtt ec- ecc ecd ece ecl eco ecr ecs ect ed- edc edd ede edl edo edp edr eds edt eec eed eee eel eeo eep eer ees eet elc eld ele ell elo elp elr els elt eo- eoc eod eoe eol eoo eop eor eos eot ep- epc epd epe epl epo epp epr eps ept erc erd ere erl ero erp err ers ert es- esc esd ese esl eso esp esr ess est etc etd ete etl eto etp etr ets ett l-p lcc lcd lce lcl lco lcp lcr lcs lct ldc ldd lde ldl ldo ldp ldr lds ldt lec led lee lel leo lep ler les let llc lld lle lll llo llp llr lls llt loc lod loe lol loo lop lor los lot lpc lpd lpe lpl lpo lpp lpr lps lpt lrc lrd lro lrp lrr lrs lrt lsc lsd lse lsl lso lsp lsr lss lst ltc ltd lte ltl lto ltp ltr lts ltt oc- occ ocd ocl oco ocp ocr ocs oct odc odd ode odl odo odp odr ods odt oec oed oee oel oeo oep oer oes oet olc old ole oll olo olp ols olt oo- ooc ood ool ooo oop oor oos oot op- opc opd ope opl opo opp opr ops opt or- orc ord ore orl oro orp orr ors ort os- osc osd ose osl oso osp osr oss ost ot- otc otd ote otl oto otp otr ots ott p-p pcc pcd pce pcl pco pcp pcr pcs pct pdc pdd pde pdl pdo pdp pdr pds pdt pec ped pee pel peo pep per pes pet plc pld ple pll plo plp plr pls plt poc pod poe pol poo pop por pos pot ppc ppd ppe ppl ppo ppp ppr pps ppt prc prd pre prl pro prp prr prs prt ps- psc psd pse psl pso psp psr pss pst pt- ptc ptd pte ptl pto ptp ptr pts ptt rcc rcd rce rcl rco rcp rcr rcs rct rdc rdd rde rdl rdo rdp rdr rds rdt re- rec red ree rel reo rep rer res ret rlc rld rle rll rlo rlp rlr rls rlt roc rod roe rol roo rop ror ros rot rpc rpd rpe rpl rpo rpp rpr rps rpt rrc rrd rrl rrp rrr rrs rrt rsc rsd rse rsl rso rsp rsr rss rst rtc rtd rte rtl rto rtp rtr rts rtt scc scd sce scl sco scp scr scs sct sdc sdd sde sdl sdo sdp sdr sds sdt se- sec sed see sel seo sep ser ses set slc sld sle sll slo slp slr sls slt soc sod soe sol soo sop sor sos sot spc spd spe spl spo spp spr sps spt sr- src srd sre srl sro srp srr srs srt ss- ssc ssd sse ssl sso ssp ssr sss sst stc std ste stl sto stp str sts stt tcc tcd tce tcl tco tcp tcr tcs tct tdc tdd tde tdl tdo tdp tdr tds tdt te- tec ted tee tel teo tep ter tes tet tlc tld tle tll tlo tlp tlr tls tlt to- toc tod toe tol too top tor tos tot tpc tpd tpe tpl tpo tpp tpr tps tpt trc trd tre trl tro trp trr trs trt tsc tsd tse tsl tso tsp tsr tss tst ttc ttd tte ttl tto ttp ttr tts ttt